Dishwashing apparatus



March 25, 1941. c. HRET D'ISHWASHING APPARATUS Original Filed Jan. 9, 1937 6 Sheets-Sheet 1 mvENToR A Clement Ehret ATTORNEY.

March 25, 1941` c. EHRET DIsHwAsHING APPARATUS Original Filed Jan. 9. 19257 G Sheets-Sheet 2 INVENTOR.

Clement Ehret BY @MM X@ ATTORNEY.

March 25, 1941. y c. EHRET DISHWASHING APPARATUS origina; Filed Jan. 9,A 19:57

6 Sheets-Sheet 3 mvENroR v(Siem ent Ehrfet MWL ATTORNEY.

Marh`25, 1941. c. EHRET DISHWASHING APPARATUS Original Filed Jan. 9, 1937 6 Sheets-Sheet 4 INVENTOR. Clement Ehr-et BY @m ATTORNEY.

March 25, 1941. c. EHRET DISHWASHING APPARATUS Original Filed Jan. 9, 1937 6 Sheets-heet 5 IIIIIIL y, fm

v INVENTOR. Clement Ehret ATTORNEY.

March 25, 1941. `c. EHRET pIsHwAsHING APPARATUS Original Filed 'Jan. 9. 1937 6 Sheets-Sheet 6 INVENOR. Clement Ehret ATTORNEY.

Patented Mar. 25, 1941 UNITED STATES g PATENT ort-lcs msnwAsmNG APPARATUS Clement Ehret, White Plains, N. Y.

original application January s', im, sensi No.

119,775. Divided and this application october 15, 1937, serial Np. 169,160

L 1.0mm, (Cl. u1-a) within the space normally occupiedrby the drain board. These' constructions have not been entirely satisfactory. yThey are complicated, difcult to clean and expensive in their initial cost. If important parts become broken, repairs or replacements are diillcult and in some instances the 6p" cutlery, silverware, dishes,` crystalware, etc., in-

entire sink has to be replaced. Moreover, they take up the space which the housewife ordinarily desires to use for other purposes and are not popular. f'

With the foregoing considerations in mind, the primary object of the present invention is to provide a simple and efllcient dishwasher, well adapted for domestic use and so constructed that it may be set into the sink like a large cooking kettle when it is desired to use the same and when not in use may be removed and stored in any convenient or out of the way place.

'I'he efllcient washing ,of dishes requires that the same be accomplished by power driven mechanism, and another object of the invention is to provide a power driven dishwasher of this kind, so constituted that it has, within this casing, a

minimum number of working parts, so that it/l A further object of the invention is to so con' stitute a dishwasher of the character describedV that it may be associated'with a conventional sink or with a sink of such lines that, to the casual observer, the sink will appear as conventional, when the` washer casing is removed.

Another object of the invention is to associate with a washer of the character described power driven scouring, wiping, bufling, or .grinding means to assist inthe cleaningof pots, pans,

'order t6 facilitate tneproper mehr mese arti-P cles, materially improve their appearance and maintain them lfree from rust, corrosion and other foreign matter.

A further object of the invention is to provide 5 -a novel .manner and means for effecting the propulsion of water forcibly upon articles to be washed,V through the employment of relatively simple mechanism utilizing a minimum amount of power. The novel manner herein disclosed l0 comprises displacing the surface strata of a body of water by one or more rapidly 'moving surfaces placed in inclined relation to said .surface and preferably projecting both above and below the same and also preferably rotating about an axis 15.

normal to said surface.

A further object of the invention i's to .provide a structure which may be easily maintained in clean and sterile condition and another object is the provision of means whereby clean wa- 20 lter may be fed, either continuously or intermittentlyI into the washer, while theexcess water therein is permitted to pass out through an apably'fdriven power take-off adapted lto project into van accessible position within the connes of the sinkand driven from any appropriate 30 source of power. 'I'he washer, proper, is in the form of a casing, provided with means for properlyf'agitating water adapted to'be contained therfgin'to the end that said water may be thrown upon the dishes or other articles placed in the washer casing for the purpose of cleansing the The water agitating means is provided with@n an operating part which is adapted to be brought into cooperation with the power takeoff when the casing vis placed in proper position in the sink, so that these parts may be connected together for operation'from the prime moverand the articles in the casing washed in a simple .and efficient way and without 'manual exertion. Associated with the sinkareone or more spindles with which buffers, scourerapolishers, etc., may be selectively associated and' these spindles are driven from theprime mover which constitutes acominonsoure of power 'for all of the movable operating parts of the structure.

. Features of the invention, other than' those adverted to, will vbe apparent from the herein. after detailed description and claim, when read in conjunction with the accompanying drawings.

v The accompanying drawingsillustrate different practical embodiments of the invention, but the constructions therein shown are to be understood as illustrative, only,` and not as defining the limits of the invention'.

Figure 1 is a section onl the line 2&-2 of Figure Y 2 and shows a` sink in front to rear section and operating parts associated 'therewith in accordance with' the present invention.

Figure 2 isa section on the line 2-2 of 'Fig-- ure 1.

Figures 3, 4 and 5 are views similar' to Figure I l'but showing modified forms of the invention,

Figure 6 is a section similar to Figure 2, but

showing another modiedform of the invention.

Figures 7 and 8 are views illustrating themethodA of this invention.

Figures 9,10, and 1l show further. modified fornisof apparatus embodying this invention.

celain, sink; The casing is of a size and shape` to be received into the sink and torest upon the bottom thereof, as shown'in these gures. The

interior ofthe washer casing'rnay be made in various ways, several of Whichwill be hereinafter described as illustrative forms, but, in` any event, Water agitating mechanism is 'enclosed therein and is adapted to be driven from a power intake,

shown generally'in Figures 1 and Z'as a stub shaft 8, projecting through the'bottom ofthe casing 5 and formed to provide a driving. con-j nection with the power Ashaft associated with the sink. v

In the embodiment of the invention illustrated in Figures 1 and 2, thepower-shaft is designated 9. -It passes through a water-tight packing or 4 gland I in a chambered boss II jformed at the,

Vbottom of the sink and provided therein witha Vchamber I2 adapted, when the 4washer is'not' in` use to be closed byy a plate I3 flush with the bottom of4 the sink. The power shaft 9 consti- Yflo tutes the driving shaft, while the stub-shaft! l :constitutes the driven shaft. A s shown,- the former has a polygonal end adapted to be received in a correspondingly shaped socket in the lower end of the latter.

On the outboard end of thedriving shaft 9 i's a, worm wheel I4 in mesh with a'worm I5 fixed on the armature shaft I6 of an electricmotor I1,A which constitutes the prime mover or sourceof power. The worm wheel I4 and worm I Vare enclosed within a grease tight casingand are adapted to run in grease, so as to be Aproperly lubricated to run quietly.4 'Ihe motor I1 is supported o'na bracket I8 cast integral with or secured to the'sink and this motor servesl to operate the. driving shaft 9 through the worm and y worinwheel connection, of such ratio as to im part ythe desired speed to the.driving shaft 9,.

The motor, I/1 may be a'variable speed motor, but,

in practice, Iv do notv find this necessary.l It mayv be controlled from a suitable switch either with orwithout a rheostat depending upon conditions of the installation.

`In the upper'portion of, the bacl's panel'2 a' shaft I9 is jur'naled for rotation.- The rear end of the shaft. is drivenfrom the tail end of 'fthe arma-ture shaftlB-through any ,appropriate connections, shown in these figures as a belt and pulley. drive, the belt being indicated at and the pulleys at 2l and 22. vThe forward. end-of Vthe shaft I9 is threaded to receive a hub of any one of several devices useful in connection' with the work to be performed. For example, a buffer 23, is shown as mounted on the shaft I9 in the figures in question, although I may use inv lieu f thereof any other polishing, cleaning, or scour- 'ing device appropriate to the purpose at hand.

The structure shown in Figure 3 is similar, in many respects, to the structures of Figures 1 and 2,-but in Figure 3, there is a direct'drive between the motorl 24 and the driven shaft 8.

`In other words, ythe armature shaft 25 of -the motor has a squared end which is received directly into the squared socket in the outboard z end of the driven shaft. I'he vshaft 25 operates throughs. gland or stuffing box as before, but the motor is supported on 'hangers 26 from the bottom of the sink. The tail end of thearmature shaft carries a pulley ,21 having a belt connection 28 with apulley 29 mounted on an upright shaft which is journalled at its upper endv in the rearwardly extending flange of the back panel 2 and carriesa beveled gear 3| meshing with a beveled gear 32 on a countershaft or spindle 33.

-The shaftv 33 is adapted to support one or more polishing,- scouring or drying' devices and is mounted on suitable bearings o n the panel 2.,v

These bearings may be conveniently formed in the opposite ends of a hood or guard 34 which protects the`wall back of the sink from particles 1 which may, in practice, be thrown off from the buffer 23.

The motor used in conjunction with this structure isL preferably a variable speedmotor as this is best suited for the ldirect driveshown.

In both of the foregoing constructions-the driven' shaft extends from the casing 5 centrally InFigure 4, howthrough the bottom thereof. ever, the driven shaft 35 projects from one side of the casing 5 andfis adapted "to cooperate .with

the driving shaft extending through one of the side .Walls ofA the sink. vThe drivingl shaftv is' shown 'at 36, passesthrough awater-tight bushing'or 'gland 31 in the back wallof the sink 'near its base, although it may pass through any otherI uprightfwall, and carries a worm wheel '36. Aand a p'ulley 39. The worm wheel 38 meshes `with the worm on'the armature shaft 40 of the motor 4I, shown as fastened to the wall back Aof the sink, Nith the pulley 39 cooperates a belt 42 driving a pulley A43on'the buier shaft I8.

' Figure 5 shows a further modification similar` to the structure of' Figure 4 in thatf the driven shaft extends through the back of the, washer casing 5, while the driving shaft 56 is the armature shaft of the motor 51, so lthat in this arrangement,A there is a direct drive. The motor is mounted on'a bracket 58 cast .integral with or attached to the sink and the armature shaft car'- l ries va' pulley 59 which drives the buffer spindle pulley 'through a belt 6 I.

In the structure of Figure 6,-the driven shaft 44. is positioned off center of the casing 5 and -lhas a squared end received in a socket-in theV inboardend of the driving shaft '45. A gland 4or packing 46 precl desleakage through the open- I `ing thus vnecessita d.. The outbuoard end of the. driving shaft carries a'beveled gear 41 meshshaft 49 of them'otor 50. "A pulley or sprocket fis also fixed on this shaft 49 and a belt or sprocking with'a beveled gear-48 fixed on theA armature et chain 5l extends around buffer spindles 52 of which one or lmore may be used. Two buffers 23 are shown of different' size and they are shielded by a guard 53 attached to the back panel 2. The drain board of the sink is indicated at 54.

By mounting the driven shaft 44 ofi centerl a relatively large casing may be used in a relatively small sink which has a drain 3 centrally located, whereas, when the driven shaft is centrally located, the drain 3 should be positioned at one end of the sink as shown in Figure 2.

It will appear from the foregoing description of the several illustrative forms of drive shown, that the drive may vary within relatively wide limits, but, in every case, there is a power shaft permanently associated with the sink and constituting a power take-off with which the driven shaft, forming a permanent part ofthe washer, is adapted to be detachably associated. I helieve this to be broadly novel in that the casing 5, and its directly associatedparts, vmay be readily moved into and out of cooperative relation with the power take-ofi to be driven thereby or to be removed therefrom and stored away in a convenient place.

The washer casing may, in accordance with` the present invention, also vary widely in construction and this is true also of the operating mechanism contained therein. However, I have shown in the drawings illustrative forms embodying this invention. s

Generally speaking, the casing may conveniently be made, by casting, spinning or otherwise fabricating the same, into appropriate form and size to receive therein a' wire basket 62 which may, if desired, be provided interiorly with partitions'or racks, so as to support dishes, glassware, etc. in upright condition. The wire basketv may have a suitable handle whereby it may be readily placed into or removed from the casing and when in place therein is adapted to be supported upon a grid or openwork partition 63 which spaces the basket from the bottom of the casing.

Into the space or chamber 64 beneath the partition 63, the driven shaft 8' extends and -fixed thereon are one or'more impeller vanes 65. Figure `3 clearly shows this construction. 'Ihe vanes extend in a radial direction and are inclined with respect to their plane of symmetry. 'I'hey may be made of a wide variety of shapes so'long as they are satisfactory for the carrying out of the method which I willnext explain. For, a clear understanding of this method, attention is directed to Figures '1 and 8 of the drawings. The chamber 64 is adapted to be charged with water up to the level indicated at 66 and the casing-5 may be perforated as shown at 61 to provide an overiiow to control this waterglevel,

whereby'it may be maintained substantially 'c onstant. The driven shaft 8 extends through the bottom ofthe chamber in' a 'direction normal to the water level 66 and the impeller, with its vanes ss', is fixed on this shaft at such a height that f the upper edges Vof the vanes will extend above the A surface, while the lower edges of the vanes will be submerged when the vanes are at rest. The vanes are 'shown as twisted in oppositel directions and are adapted to be rotated, so lthat thei upper edges are their leading edges. In practico, they are preferablylcurvedln' a longitudinal direction, although they may be straight without departing from this invention and, instead, ofv

being nat as shown in Figure 8, they may curved on their under sides, so as to have a scoop effect.

I have found thatyqhen a vanemounted in this relation to a body of water, is rotated, the phenomena. shown in Figure 8 will, result and 'will cause the water to beithrown in an upward inclined direction against the dishes in the basket 62 and against the sideof the casing 5to restate. Eflicient washing of dishes requires mass and velocity and whenI water is impelled against them in the manner stated, the result is highly satisfactory. The impeller described impels the water in `appreciable masses forcibly against the surface of the dishesand effectually cleans them. The fact that the impeller operates at the surface of a pool makes the movement ofl such a large mass of water possible. The water thrown from the pool against the dishes immediately returns to the pool by gravity to keep said pool at a substantially constant-level. v

L If desired, the overflow 61 may be provided with a cock so that it may be sealed if the washing is-to be carried out with a single charge of water, but if the overow 61 is open or its outflow controlled, fresh water may be constantly fed into the casing, so as to maintain a substantially clean condition of the water therein. This masses of water thrown in not too finely dividedv latter result may be eiliciently carriedy out by or a mixture thereof, as may be desired, and in such quantities as to maintain the level in the pool and to thereby assist in carrying off impurities and tending to maintain the water in the pool practically clean and at the desired level .through a supply of fresh water which may be fed either constantly or intermittently into the casing. a v

A cage 1|- maybe supplied in the cover and ysoap or other detergent material may be-housed 'in4 this cage to supply the desired suds or soften the waterjas may be required.

Figure 3 shows a simplewform of driving mech- 'anism of the washer for here the drive is direct. In Figure 4, however, where Va change in direc` tion of the drive is necessary, the worm wheel 12 is mounted on the impeller shaft 13 and meshes with a worm 14 mounted on the driven shaft 35. The worm and worm'wheel. are housed within a false bottom 15 mounted on the bottom of the casing 5 and preferably constituting a water'ik tight compartment. The structure of Figure 5 is the same with respect to the worm and gear ydrive as that shown in Figure 4. t

In Figure.6 the impeller shaft 16 has amxed thereto a` pulley 11 having a belt connection .18 with a pulley 19 fixed on the driven shaft 44, both pulleys and` the belt being housed in a waterproof compartment within the falsebottom 15. v

Other forms of driving connections between the impeller and the driven shaft may be em- .ployd and in some cases a flexible shaft may be used to advantage. The invention is not limited in this connection. VInail ofA the several illustrative forms of the invention which I- have described, the 'arrangement is such, however,

that when the Washer casing is removed from the sink, the sink may be used in the usual'way. In such forms of the invention as` shown 'in Figures 1, 2, 3 and 6, the opening at the bottom Y of the sink through which the power is fed may power outlet is atv the upright walls ofthe sink,

Athe opening through which the power is taken may also 'be normally closed by a plate and, in the preferred form of the invention, I provide,

Adirectly above such openings, pivoted disks 80 which normally gravitate into a position to close these openings. All of the openings, are, however, provided with bushings orpackings about the power shafts, so that they will lnot leak and the covers simply serve to conceal these openings when not in use. s

When the dish washer is to-be used as such, it-

is lifted into the sink and its driven shaft brought into engagement with the driving-shaft and the' parts are thus coupled togetherfor operation; If desired, a lockedcoupling or a suitable fixture, or both, may be employed to fasten the' casing rigidly in position in the sink to preclude 'the withdrawal of theV driven shaft from the driving shaft, but I do notiind this necessary as the weight of the casing and associated parts is sutlicient to hold the parts in assembled relation. The device is used by charging the casing with water to provide the required pool in the chamber 6'4. Dishes are .thereupon placed in Vthe wire basket 62 and the basket is set in the casing and thecover 6 applied. Power 'is then turned onto energize the motor and the Aimpeller is driven through any of the forms of the connections described to throw water on :to the dishes as shown inFigure 8.

During thepperation of the washer, the overfiow 61 may be left open and the faucet turned on to supply fresh watercontinuously or pe-' riodicall'y through 'the connection 68, which-conveniently may be a slip hose'connection. The casing and dishes remain stationary, the primary moving part being the Water impeller which throws the water on to the dishes in appreciable masses to properly cleanse the saine.

After the impeller has been operated through a suicient period to ,accomplish this result, the motor is turned olf, the cover removed and lthe wire basket may thereupon belifted. out of the casing and set asidevtemporarily while another wire basket with dishes or otherrarticles therein is placed in the casing for washing while the contents of .the previous basket are being' dried. If dried through the use of the buffer, Va dual result is secured with a single effort for while oneiload of dishes or articles' are being washed, previously washed articles may be dried simultaneously.- If desired, the dishes may' be dried by holding them Aagainst the buffer.A

Buffers of appropriate shape vand size may be used in this connection to dry and polish plates,

acting upon and maintaining articles used about the kitchen. y

In. practically carrying out this invention, the power mechanism may be built into the sink as shown, for example, in Figures 1-3, or it'may be incorporated into a conventional sink by simplydrilling a. hole through the wall ofthe sinkv and mounting therein abearing for the powershaft,

`the motor being mounted on the wall backof the sink or on the floor.

The present invention is not limitedin this connection.- In the employment of the present invention, the washer and.

polishing units may be used simultaneouslyor each may be used separately or either unit maybe'installed as aseparate mechanism.

Figures -9, 10.and 11 show further modified forms ofthe invention. .In Figure 9 the washing casing 5 is shown as provided in itsbottom with Der end of theshaft is squared at 85 to receive a socketed end-- of a flexible shaft 86. The flexible4 shaft is driven from any suitable prime mover such as aV motor 81 supported on the sink,

wall or on` any other suitable rm support. 'I'heA connectionbetween the flexible shaft and the shaft may be readily connected to or Idisconnectedfrom the shaft 8| to allow of the removal 'and replacement of the cover, 'I'he dishes are adapted to be contained in the casing- 5 in' a wire basket as hereinbefore described which can .bev

readily lifted out when desired. r

In the construction of Figure 10, the casing 5 is provided therein with an impeller 65 and Aan .upstanding operating shaft 88, corresponding to the shaft 8| in the preceding figure, an'd the upper end of this shaft 88 is squared'as at 89. Mesh sleeve 82 surrounds shaft 88.- The cover .9,0 is formed therein with a chamber in which is supported a pair of cooperating meshing-bevel gears 9| and 92, the former of which has a socket ,to receive the squared end of the shaft 88 and the latter is securedv to a shaft 83 adapted to be detachably associated 'with the power shaft 94 of a motor 95fpermane'ntly associated with the sink. To hold the cover in place,

said cover is preferably provided at one side with. one or more rigid hooks 96 and at the other side with one or more pivoted hooks 91 which may be engaged with or disengaged from the bead at the top of the casing 5 toflock the cover in place. When the hooks 91 arelreleased the cover maybe lifted from the casing, carrying with 'it the gears 90 and 9| and the shaft 93. and disengaging'the gear 9| 'from the upper -end of the shaft 88. 'I'he dishes or other articles are adapted to be received within the casing in an ap'- propriate wire basket as before.

In the structure of Figure 11, the impeller i5 lisv fixed onl ashaft 98 oarryinga bevel gear $9 which is driven by va bevel gear |00, xed, on a shaft This shaft .a bevel gear |02 exteriorly of the casing and vith this bevel vgear meshes a second bevel gear |03 fixed on an. uplnight shaft |041 The upper endfof shaft |04 is squaredat |05 to nt the socketofany appropriate .driving connection, such, for example, as a flexible shaft of the character shown dn Figure 9, .drivenimom a. motor or any other suitable source of power.- 'The greater pontionpf .the

30 shaft 8| is a slip connection, so that the flexible A manner hei'einbefore described.

this prime mover may be mechanical, electrical or' otherwise and it may constitute, if desired, a crank or rtreadie adapted to be manually operated. The main consideration is that a shaft is provided from which power may be taken od to drive the operating parts of lthe washer in the In the drawings I have'shown the prime mover as mounted in 'various places. In some instances,

v'it is supported directly on the sink. In other instances it is supportedon the wall back of the sink. I Wish it understood in this connection that the prime mover maybe mounted anywhere desired and may be mounted on the floor or on a bracket or pedtal on the door or in any other desirable and suitablelocation or place that may be convenient for any particular installation.

- Inv the carrying out of the 'method of this invention very good results have ,been obtained where .the vanes are rotated so asto be partially submerged in the waiter in the container. I do not wish to limit this submerging to any particular degree and in some cases the vanes may be submerged entirelybut closely adjacent to thesurface of the water, as the fundamental purpose of these varies is to agi-tate and throw the water as described and I do not limit tovmore or less submersion so long as the effect described in connection with this method is carried out.

It will -be noted from Figure 11 that I have shown la. water draw-off at the base of the casing 5 and this' draw-,off may be associated with the casing-s of any of the other forms of the invention shown. In any event it is located so as to drain 'the `pool from the casing when desired. I-t may be of any appropriate form, but is shown as a screw plug Ill-1 attached by a chain |08 to the casing. so 'that' when it is removed it cannot be lost. To drainjthe water from vthe pODl the tors shown inthe several gufres may be of the reversible, variable speed type, with appropriate controls as will be well understood in the ar't, so that the impel-ler may be as a fan to for-ce air through .the dishes to dry or partially dry the same. I-t will be understood of course in'this connection' that the cover should be removed while this operation is carried out and most of the figures of the drawings are so constituted as .to permit of .the operation of the fan with the cover removed. However, in such structures as Figure l0, the cover may be pro-- vided with an appropriate opening having a suitable closure which may/ be removed to permit of the passage of air into and out of ythe casing to be acted upon by the fan for the purpose stated.

The fan may be operated for a sumcient period to` :thoroughly dry the articles inthe casing.

or it may be operated long enough .to effect a partial drying .of the' same and in any event the plug may be removed and the water will 'run out.

part' of the sink.

articles may be subsequently removed from the easing in dried or partially dried condition and the drying or polishing completed by use of the buffers or other drying or polishing devices to whiohIhave referred. v

In Figures 9, l0 and 11 ishing, drying or buiiing units, .but itwill be understood that such units may be associated with thes@ constructions in any of the ways hereinbefo described or in any sui-table or .equivalent manner.v E. g., I may, if desired, so position the driving motors that their shafts ex- I have not shown poltend from opposite ends ofthe motor easingswiJth the driving connections for the washer coupled to one end of the shaft, and a polishing,v

drying or bufling unit mounted on the other end of the shaft.

I have shown in the several figures of the drawings different modified forms of drivingconnections between the prime .mover and the impeller, but Il2 wish it understood that I may use such appropriate driving connections as may be desired and these connections may embody either belts, gears, flexible shafts or a corn'bina-v tion of,one or more of these forms of connection for the transmission of power.

I have hereinbefore referred to the power operated shaft which extends into thev sink; as mounted on the sink or on the brackets or otherwise associated therewith, but, if desired, this power operated shaft may be supported on the wall or on a bracket on the wall, or on any other suitable supportl and not necessarily on the sink itself, so long as it projects into position to properly cooperate with the operating mechanism of lthe washer casing. I

In the several gures of the drawings and in the description of these individual figures, I have shown and described different features of the invention, but iii the interestsof simplicity of disclosure, I have not' attempted to apply al1 of these features to each and every construction. It is to-be understood, however, that in practically' carrying out the invention' in any of its forms, I may'use in any particular form or'forms any of the features described in any one or more of the other forms. E. g., it should be borne in mind conjunction with particular features is applicable to all of them.

o This invention should not be confused with d those suggested prior art devices wherein some part of the sink enters into or constitutes` a hous` :ing for the operating parts of a washing machine. Such prior devices are characterized by the factA that special sinks provide for the assembly 'of washing apparatus ytherein and which washingV power shaft to which the otherwise complete and self contained dishwashing machine is adapted to be coupled when it is placed inia sink.

-In the foregoing detailed description I have set All that the sink carries is a i'orth different practical forms of the invention for the purpOse of illustration.' but the invention is -to be understood as fully commensurate with the appended claim.

- This application' is a division of my :so-pending application, Serial No.,119,775, led'January 9,

Having thus fully described the invention, what I claim as new and desire to secure. by Letters Patent is: i

In an assembly of the character described, a sink comprising a basinhaving a substantially. flatvbottom, and upstanding walls at the front, sides and back thereof, a power shaft projecting mm accessible position-'within the 'commes of said basin, asepaiate complete dishwasher casing of greater depth than Athe depth of the basin, re-

movably seated within said basin and projecting above the front and side Walls thereof and extending appreciablyabove the confines of the basin, complete dishwashing means housed with.-

in said casing including a driving shaft' accsdtachably connectingvthe driving shaft o! the casing to the power shaft of the basin4 to operate sible from-the exterior of the casing, and means io- 4 

